M qcardiac
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Transcript of M qcardiac
CAR-diac™
matt quantzt
C omprehensiveA utomobileR eal-Time andD iagnosticI nformationA cquisitionC ontroller
CAR-diac™
Elevator Pitch
(I Always Use The Stairs)The CAR-diac™ is a comprehensive scan tool that reads malfunction and diagnostic
codes in addition to run-time data from RPMs to MPGs. It will save you money at
the mechanic and at the fuel pump. Ensure your kids are driving responsibly. It makes the perfect for dads and grads, so don’t
wait! Get YOURS Today!
CAR-diac™:• diagnoses check engine (MIL) lights• displays real-time operating data• provides hands-free voice feedback• logs critical data
What Does It Do?
How Does It Work?
• Communicates with the Engine Control Unit (ECU) via the OBD-II protocol
• Sends Parameter ID codes (PIDs) and AT commands
• Receives encoded data• The PID data is decoded and
processed
Why Buy?• Save trips to your
mechanic/dealer• Monitor your driving
habits• Accurately tune your car• Spy on your kids• Reconstruct traffic
accidents
• Because you don’t own enough gadgets
mbed NXP LPC1768 ARM Cortex-M3Fcpu: 96 MHz, 512 kB FLASH,
32 kB RAM, Max CurrentDrawn: 120 mA
Peripherals:Ethernet, USB Host, USB Device, SPI, I2C, CAN, Analog In/Out, PWM Out
Show Me The Brain!
NGX mX Baseboard
Show Me The Body!LCD (Upgraded to 20x4) Ethernet
Audio Out
RS-232
VGA
PS/2
BUZZEREEPROMSD Card
JTAG
Show Me The Mouth!
SpeakJetVoice And Complex Sound Synthesizer IC
TTS256Letter to Sound Translation IC
Honeywell HMC6352 Digital Compass:
• I2C interface• 20 Hz update
Show Me The Eyes!
Show Me The GUTS!
SparkFun’s OBD-IITo UART Board
Utilizes STN1110 OBD toUART interpreter
Show Me The GUTS!
DB-9 Connector mates withDB-9 to OBD-II Cable
TTL UART Interface toMicrocontroller
Show Me The GUTS!
Supports all legislatedOBD-II protocols
Can power itself and thesystem from the car battery
• Interesting project• Learned a lot about ECUs and the sensor data
they collect• Revealed an unknown method of
commercializing ideas• SVN is a necessity, not a luxury• Need remote programming interface• Need off-line compiler• Need more time in a day
Reflections
Questions?
Image of full-scale wire frame replica Countach courtesy of the artist, Benedict Radcliffe. Used without permission. Same for the following picture of Pizza the Hutt.
Let’s Eat Some Pizza!